Consider the following reactions at 1000 -C-i Zns - 1-2 O2g- ZnOs - - G- - -360 kJ mol-1ii Cs - 1-2 O2g- COg - - G- - -460 kJ mol-1Choose the correct statement at 1000 -C-

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Redox Reactions

Consider the ...

Question

Consider the following reactions at 1000 $^{\circ} C$ :

(i) $Z n_{(s)} + 1 / 2 O_{2 (g)} ⟶ Z n O_{(s)}, Δ G^{\circ} = - 360 k J m o l^{- 1}$

(ii) $C_{(s)} + 1 / 2 O_{2 (g)} ⟶ C O_{(g)}, Δ G^{\circ} = - 460 k J m o l^{- 1}$

Choose the correct statement at 1000 $^{\circ} C$ .

Zinc can be oxidized by

C O

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Zinc oxide can be reduced by

C

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Both statements (i) and (ii) are true

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Both statements (i) and (ii) are false

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1000^{\circ} C

i . Z n (s) + \frac{1}{2} O_{2} (g) \to Z n O (s); Δ G = - 360 KJ/mol

i i . C (s) + \frac{1}{2} O_{2} (g) \to C O (s); Δ G = - 460 KJ/mol

10000^{\circ} C

(a) Z n (s) + \frac{1}{2} O_{2} (g) \to Z n O (s); Δ G^{\circ} = - 360 k J / m o l (b) C (s) + \frac{1}{2} O_{2} (g) \to C O (s); Δ G^{\circ} = - 460 k J / m o l

1000^{\circ} C

i . Z n (s) + \frac{1}{2} O_{2} (g) \to Z n O (s); Δ G = - 360 KJ/mol

i i . C (s) + \frac{1}{2} O_{2} (g) \to C O (s); Δ G = - 460 KJ/mol

C (s) + \frac{1}{2} O_{2} (g) \to C O (g); Δ H_{1} = a

C O (g) + \frac{1}{2} O_{2} (g) \to C O_{2} (g); Δ H_{2} = b

C (s) + C O_{2} (g) \to 2 C O (g); Δ H_{3} = c

1000^{0} C

Z n_{(} s) + \frac{1}{2} \to Z n O_{(s)}; △ G^{0} = - 360 k J m o l^{- 1}

C_{(1)} + \frac{1}{2} O_{2 (g)}; △ G^{0} = - 460 k J m o l^{- 1}

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